diff --git a/src/bonsai/bonsai/bim/module/project/prop.py b/src/bonsai/bonsai/bim/module/project/prop.py
index 9f61c2aeab..fe23355846 100644
--- a/src/bonsai/bonsai/bim/module/project/prop.py
+++ b/src/bonsai/bonsai/bim/module/project/prop.py
@@ -97,6 +97,7 @@ def is_editing_project_library_update(self: "BIMProjectProperties", context: bpy
         assert library_file
         self.editing_project_library_id = int(self.selected_project_library)
         project_library = library_file.by_id(int(self.selected_project_library))
+        self.project_library_attributes.clear()
         bonsai.bim.helper.import_attributes2(project_library, self.project_library_attributes)
         self.parent_library = str(tool.Project.get_parent_library(project_library).id())
         ProjectLibraryData.load()  # Show edit icon in enum.